How to make 4 days trip to Switzerland

hi! I am planning to make 3 to 4 days trip to Switzerland from Paris along with my wife in August second week. I am interested in visiting interleukin, Lucerne, Mt Titlis and jangfura. Can some body suggest me mode of travel and where all to stay. Thanks

We are planning a simlilar trip from Paris and returning to Paris in August.I have compared the various options/passes and figured out that Eurorail pass for Switzerland France is the best .It cludes rail travel to and from Paris and most of the trips we would like to do , including the Interlaken-Lucerne. We are taking a 5-day pass.Based on the advice from this forum, we will be stationed at one place and do side trips.We r planning to stay in Grindelwald.